CVE-2024-32040 HIGH

CVE-2024-32040: FreeRDP vulnerable to integer underflow in nsc_rle_decode

Vendor Freerdp
Product FreeRDP
Weakness CWE-191
Published April 22, 2024
Last update November 3, 2025
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients that use a version of FreeRDP prior to 3.5.0 or 2.11.6 and have connections to servers using the `NSC` codec are vulnerable to integer underflow. Versions 3.5.0 and 2.11.6 patch the issue. As a workaround, do not use the NSC codec (e.g. use `-nsc`).

Key dates

02Disclosure timeline

April 22, 2024 CVE published
November 3, 2025 Record updated